Question:

For gZg\isin\Z, let gˉZ37\bar{g}\isin\Z_{37} denote the residue class of g modulo 37. Consider the group U37 = {gˉZ37:1g37\bar{g}\isin\Z_{37}:1\le g\le37 with gcd(g, 37) = 1} with respect to multiplication modulo 37. Then which one of the following is FALSE?

Updated On: Oct 1, 2024
  • The set gˉU37:gˉ=(gˉ)1{\bar g \isin U_{37}: \bar g = (\bar g)^{-1}} contains exactly 2 elements.
  • The order of the element 10\overline{10} in U37 is 36.
  • There is exactly one group homomorphism from U37 to (Z\Z, +).
  • There is exactly one group homomorphism from U37 to (Q\mathbb{Q},+).
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The Correct Option is B

Solution and Explanation

The correct option is (B): The order of the element 10\overline{10} in U37 is 36.
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